Title :
Scalability video data distribution using cache terminal for multi-quality video service
Author :
Suzuki, Shunya ; Kodama, Mei
Author_Institution :
Inf. Media Center, Hiroshima Univ., Japan
Abstract :
In the video-on-demand (VOD) services, low resolution video data is suitable for contents searching; on the other hand, high resolution video data is expected for browsing. Even if the client has already received low resolution video data as search results, the traditional simulcast method must send whole high resolution video data which includes the same information with low resolution video data. To decrease the traffic between VOD server and the clients, there are two different approaches: one is introduction of cache servers between VOD server and clients, to decrease the non-essential transfer of VOD server, while another is the scalability video encoding to remove the non-essential transfer by utilization of pre-transferred low resolution video data. In this paper, we analyze these two approaches and show the suitable conditions.
Keywords :
cache storage; client-server systems; image resolution; multimedia communication; video coding; video on demand; video servers; VOD clients; VOD server traffic; browsing; cache servers; cache terminal; client search results; contents searching; multi-quality video service; nonessential transfer; pre-transferred low resolution video data; scalability video data distribution; scalability video encoding; simulcast method; video data resolution; video-on-demand services; Broadband communication; Cities and towns; Encoding; Home automation; Motion pictures; Multimedia systems; Narrowband; Network servers; Scalability; Video on demand;
Conference_Titel :
Communications and Information Technology, 2004. ISCIT 2004. IEEE International Symposium on
Print_ISBN :
0-7803-8593-4
DOI :
10.1109/ISCIT.2004.1412866